CN113055205A - Bandwidth adjusting method and device and computer storage medium - Google Patents
Bandwidth adjusting method and device and computer storage medium Download PDFInfo
- Publication number
- CN113055205A CN113055205A CN201911373848.8A CN201911373848A CN113055205A CN 113055205 A CN113055205 A CN 113055205A CN 201911373848 A CN201911373848 A CN 201911373848A CN 113055205 A CN113055205 A CN 113055205A
- Authority
- CN
- China
- Prior art keywords
- low
- service data
- onu
- delay
- transmitted
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 51
- 238000003860 storage Methods 0.000 title abstract description 15
- 230000003287 optical effect Effects 0.000 claims abstract description 9
- 238000012544 monitoring process Methods 0.000 claims description 55
- 230000005540 biological transmission Effects 0.000 claims description 34
- 238000004590 computer program Methods 0.000 claims description 3
- 238000005304 joining Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 23
- 238000011144 upstream manufacturing Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 239000000284 extract Substances 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0896—Bandwidth or capacity management, i.e. automatically increasing or decreasing capacities
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0852—Delays
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Environmental & Geological Engineering (AREA)
- Small-Scale Networks (AREA)
Abstract
The disclosure relates to a bandwidth adjusting method and device and a computer storage medium, and relates to the technical field of computers. The bandwidth adjusting method comprises the following steps: under the condition that the service data to be transmitted of the optical network unit ONU is monitored to be low-delay service data, the number of the burst time slots distributed to the ONU is increased according to the delay requirement of the low-delay service. According to the method and the device, the service delay is reduced, and the user experience is improved.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a bandwidth adjustment method and apparatus, and a computer-readable storage medium.
Background
In the existing networks, PON (Passive Optical Network) technology has been widely deployed. An OLT (Optical line terminal) in the PON device is responsible for allocating an upstream bandwidth in each bandwidth cycle in real time for all online ONUs (Optical Network units) under its PON port.
According to the mode in ITU-T (ITU Telecommunication Standardization Sector, international Telecommunication union Telecommunication Standardization Sector) standard g.987.3, the current bandwidth allocation method is:
and the ONU reports the byte number of the data packet waiting for transmission in each bandwidth period according to a standard format, the PON port of the OLT is all the on-line ONUs below the OLT, and the transmission time slot of the next bandwidth period is allocated to the ONU according to the byte number of the data packet to be transmitted reported by the ONU and in combination with the bandwidth template corresponding to the ONU. The bandwidth template includes a guaranteed bandwidth (CIR) and a Peak bandwidth (PIR). Wherein the transmission time slot is composed of a plurality of discontinuous BURST time slots (BURSTs).
In the related art, the OLT determines the number of specific burst slots according to the number of users on the premise of ensuring the efficiency of the uplink bandwidth.
Disclosure of Invention
The inventor thinks that: in the related technology, the requirement of general service time delay is relatively loose, the OLT can meet the uplink transmission requirement of the ONU with the minimum burst time slot in order to ensure the uplink bandwidth efficiency, at this time, the service data with the low time delay requirement received by the ONU needs to wait for a certain time interval to obtain an uplink transmission opportunity, and for the low time delay service, the service time delay is large, and the user experience is poor.
In view of the above technical problems, the present disclosure provides a solution, which reduces service latency and improves user experience.
According to a first aspect of the present disclosure, there is provided a bandwidth adjustment method, including: under the condition that the service data to be transmitted of the optical network unit ONU is monitored to be low-delay service data, the number of the burst time slots distributed to the ONU is increased according to the delay requirement of the low-delay service.
In some embodiments, the bandwidth adjusting method further comprises: and monitoring whether the service data to be transmitted of the ONU is low-delay service data or not.
In some embodiments, the service data to be transmitted is multicast service data, and monitoring whether the service data to be transmitted of the ONU is low-latency service data includes: monitoring whether the ONU joins a low-delay service channel or not; and determining the service data to be transmitted as low-delay service data under the condition that the ONU is monitored to be added into a low-delay service channel.
In some embodiments, monitoring whether the ONU joins a low-latency traffic channel comprises: monitoring an adding message of the ONU which is added to the low-delay channel; and the ONU joins the low-delay service channel under the condition that the joining message is monitored.
In some embodiments, the bandwidth adjusting method further comprises: monitoring whether the ONU leaves a low-delay service channel; and under the condition that the ONU is monitored to leave the low-delay service channel, determining the service data to be transmitted as non-low-delay service data.
In some embodiments, monitoring whether the ONU leaves the low-latency traffic channel comprises: monitoring a leaving message of the ONU leaving the low-delay service channel; and under the condition that the leaving message is monitored, the ONU leaves the low-delay service.
In some embodiments, monitoring whether the pending transmission service data of the ONU is low-latency service data includes: acquiring the average length of data messages of Ethernet packets in the service data to be transmitted of the ONU within a specified time period; determining the number of Ethernet packets with the average length of the data messages larger than a first threshold value; and determining the service data to be transmitted as low-delay service data under the condition that the number is greater than a second threshold value.
In some embodiments, monitoring whether the pending transmission service data of the ONU is low-latency service data further includes: and determining the service data to be transmitted as non-low-delay service data under the condition that the number is less than or equal to a second threshold value.
In some embodiments, in the case that monitoring, by the ONU, whether the pending transmission service data of the ONU is low-latency service data is performed, the bandwidth adjusting method further includes: and receiving a low-delay service identifier carried when the ONU reports the service data to be transmitted under the condition that the service data to be transmitted is determined to be low-delay service data.
In some embodiments, the bandwidth adjusting method further comprises: and receiving the service data to be transmitted reported by the ONU under the condition that the service data to be transmitted is determined to be non-low-delay service data, wherein the service data to be transmitted does not carry a low-delay service identifier.
In some embodiments, monitoring whether the pending transmission service data of the ONU is low-latency service data includes: monitoring dynamic bandwidth allocation unit information reported by the ONU; determining a transmission container corresponding to the dynamic bandwidth allocation unit message; and determining the service data to be transmitted as the low-delay service data under the condition that the low-delay service parameter of the transmission container is a first value.
In some embodiments, monitoring whether the pending transmission service data of the ONU is low-latency service data further includes: and under the condition that the low-delay service parameter of the transmission container is a second value, determining the service data to be transmitted as non-low-delay service data.
In some embodiments, the bandwidth adjusting method further comprises: and under the condition that the service data to be transmitted is non-low-delay service data, reducing the number of burst time slots allocated to the ONU.
According to a second aspect of the present disclosure, there is provided a bandwidth adjusting apparatus including: the device comprises an increasing module and a judging module, wherein the increasing module is configured to increase the number of the burst time slots allocated to the ONU according to the time delay requirement of the low-delay service under the condition that the service data to be transmitted of the ONU of the optical network unit is monitored to be the low-delay service data.
According to a third aspect of the present disclosure, there is provided a bandwidth adjusting apparatus, including: a memory; and a processor coupled to the memory, the processor configured to perform the bandwidth adjustment method of any of the above embodiments based on instructions stored in the memory.
According to a fourth aspect of the present disclosure, a computer-storable medium has stored thereon computer program instructions which, when executed by a processor, implement the bandwidth adjustment method of any of the above embodiments.
In the embodiment, the service delay is reduced, and the user experience is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.
The present disclosure may be more clearly understood from the following detailed description, taken with reference to the accompanying drawings, in which:
fig. 1 shows a diagram of the relationship between burst slots and low-latency traffic;
fig. 2A illustrates a flow diagram of a bandwidth adjustment method according to some embodiments of the present disclosure;
FIG. 2B illustrates a flow diagram of a bandwidth adjustment method according to further embodiments of the present disclosure;
fig. 3 illustrates a block diagram of a bandwidth adjustment apparatus according to some embodiments of the present disclosure;
fig. 4 illustrates a block diagram of a bandwidth adjustment apparatus for multicast traffic, according to some embodiments of the present disclosure;
fig. 5 shows a block diagram of a bandwidth adjustment apparatus for services other than multicast services according to some embodiments of the present disclosure;
fig. 6 is a block diagram of a bandwidth adjustment apparatus for services other than multicast services according to further embodiments of the present disclosure;
FIG. 7 shows a block diagram of a bandwidth adjustment apparatus according to further embodiments of the present disclosure;
FIG. 8 illustrates a block diagram of a computer system for implementing some embodiments of the present disclosure.
Detailed Description
Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.
Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Fig. 1 shows a schematic diagram of the relationship between burst slots and low-latency traffic.
As shown in fig. 1, OLT assigns burst slots a1, a2, and A3 to ONU a, burst slots B1, B2, and B3 to ONU B, and burst slots C1, C2, and C3 to ONU C. For low latency traffic of ONU a at time t1, it is required to upload to OLT at burst slot a2 at time t2 the fastest. That is, the low-delay service of the ONU a needs to wait for the time interval from t2 to t1 before being uploaded to the OLT, thereby increasing the service delay and reducing the user experience.
In an FTTH (Fiber To The Home) Home broadband service scenario, multiple ONU users are in The same PON port, and different users use low-delay services in different time periods, and The same user also uses The low-delay services in a certain time period. The current bandwidth allocation mode of the PON port cannot distinguish data of different service types in the ONU uplink transmission data, so that optimization cannot be made for the low-latency service, and the latency of transmitting the low-latency service data at the PON port cannot be reduced.
In view of the above technical problems, the present disclosure provides a solution, which reduces service latency and improves user experience.
Fig. 2A illustrates a flow diagram of a bandwidth adjustment method according to some embodiments of the present disclosure.
As shown in fig. 2A, the bandwidth adjusting method includes step S110. In step S110, when it is monitored that the service data to be transmitted of the ONU is low-latency service data, the number of burst time slots allocated to the ONU is increased according to the latency requirement of the low-latency service. The low-latency service is a low-latency service corresponding to low-latency service data.
Fig. 2B illustrates a flow diagram of a bandwidth adjustment method according to further embodiments of the present disclosure.
As shown in fig. 2B, the bandwidth adjusting method includes steps S210 to S220.
In step S210, it is monitored whether the service data to be transmitted of the ONU is low-latency service data. Low latency traffic of the present disclosure refers to traffic having low latency requirements. For example, the low latency traffic includes high definition video traffic or VR (Virtual Reality) traffic. In some embodiments, the step S210 is performed by the ONU or the OLT.
In some embodiments, when the service data to be transmitted is multicast service data, monitoring whether the service data to be transmitted of the ONU is low-latency service data includes the following steps:
first, whether the ONU joins a low-latency traffic channel is monitored.
For example, monitoring whether an ONU joins a low-latency traffic channel is implemented as follows.
And monitoring an adding message of the ONU adding the low-delay channel. And adding the ONU into the low-delay service channel under the condition that the message is monitored to be added.
And then, under the condition that the ONU is monitored to be added into the low-delay service channel, determining the service data to be transmitted as the low-delay service data.
In some embodiments, the bandwidth adjusting method further comprises the steps of:
and monitoring whether the ONU leaves a low-delay service channel or not. And under the condition that the ONU is monitored to leave the low-delay service channel, determining the service data to be transmitted as non-low-delay service data.
Monitoring whether an ONU leaves a low-latency traffic channel is achieved, for example, as follows.
And monitoring the leaving message of the ONU leaving the low-delay service channel. And when the leaving message is monitored, the ONU leaves the low-delay service.
In some embodiments, monitoring whether the pending transmission service data of the ONU is low-latency service data may include the steps of:
firstly, the average length of data messages of Ethernet packets in service data to be transmitted of an ONU in a specified time period is obtained. For example, the average length of the data packet of the ethernet packet is represented by the number of bytes. For example, the specified time period may be one bandwidth cycle.
Then, the number of ethernet packets with the average length of the data packets larger than the first threshold is determined.
And finally, determining the service data to be transmitted as the low-delay service data under the condition that the quantity is greater than a second threshold value. For example, it may also be determined that the pending service data is determined to be low-latency service data when the ratio of the number of ethernet packets whose average length of the data packet is greater than the first threshold in the total number is greater than a preset ratio.
In some embodiments, monitoring whether the pending transmission service data of the ONU is low-latency service data further includes: and determining the service data to be transmitted as the non-low-delay service data under the condition that the number is less than or equal to a second threshold value.
For example, in the case that the ONU monitors whether the service data to be transmitted of the ONU is low-latency service data, the bandwidth adjusting method further includes the following steps: and under the condition that the service data to be transmitted is determined to be low-delay service data, receiving a low-delay service identifier carried when the ONU reports the service data to be transmitted. The low-delay service identifier is used for indicating that the service data to be transmitted is low-delay service data. For example, the low latency traffic identification is located at bit 0 or bit 8 in the Ind of the Header portion of the ONU upstream frame. The structure of the ONU upstream frame is the same as the existing structure.
In some embodiments, the bandwidth adjusting method further comprises the steps of: and under the condition that the service data to be transmitted is determined to be non-low-delay service data, receiving the service data to be transmitted reported by the ONU, wherein the service data to be transmitted does not carry a low-delay service identifier.
In some embodiments, monitoring whether the service data to be transmitted of the ONU is low-latency service data includes the following steps:
first, a Dynamic Bandwidth allocation unit (DBRu) message of the ONU is monitored.
Then, a transport Container (T-CONT, Transmission Container) corresponding to the dynamic bandwidth allocation unit message is determined. For example, the Allocation ID (Allocation identifier) of an upstream frame in an ONU corresponds to one transport container.
And finally, determining the service data to be transmitted as the low-delay service data under the condition that the low-delay service parameter of the transmission container is a first value.
In some embodiments, all traffic flows sent by an ONU to an OLT are carried in a corresponding plurality of XGEM (XG-PON Encapsulation Method) channels, each XGEM channel corresponding to a transmission container. The OLT may add low latency service parameters to the configuration information of the XGEM channels carrying low latency services when configuring information of each XGEM channel of the ONU. The configuration information is the corresponding relationship between the transmission container and the low-delay service parameter. For example, the correspondence also includes individual XGEMs. By means of the low-delay service parameters, it can be determined which transmission container of the ONU carries the low-delay service data, and then the specific transmission container of the ONU can be determined when the burst time slot is added, thereby saving the bandwidth.
In some embodiments, monitoring whether the pending transmission service data of the ONU is low-latency service data further comprises: and under the condition that the low-delay service parameter of the transmission container is a second value, determining the service data to be transmitted as non-low-delay service data.
Returning to fig. 2B, in step S220, when the service data to be transmitted is low-latency service data, the number of burst timeslots allocated to the ONU is increased according to the latency requirement of the low-latency service. For example, the number of burst slots allocated to an ONU is increased by using the correspondence between the delay requirement of the low-delay service and the number of burst slots. For example, the number of burst slots allocated to the ONU is increased by the OLT.
In some embodiments, the bandwidth adjusting method further comprises the steps of: and under the condition that the service data to be transmitted is non-low-delay service data, reducing the number of burst time slots allocated to the ONU. For example, the number of burst slots allocated to the ONUs is reduced by the OLT. For example, when the service data to be transmitted is non-low-latency service data, the burst timeslot may be allocated by using the existing technology.
According to the method and the device, under the condition that the service data to be transmitted is monitored to be low-delay service data, the number of the burst time slots is increased, the service delay is reduced, and the user experience is improved.
Fig. 3 illustrates a block diagram of a bandwidth adjustment apparatus according to some embodiments of the present disclosure.
As shown in fig. 3, the bandwidth adjusting apparatus 3 includes an adding module 31.
The adding module 31 is configured to, when it is monitored that the service data to be transmitted of the ONU is low-latency service data, increase the number of burst time slots allocated to the ONU according to the latency requirement of the low-latency service, for example, execute step S110 shown in fig. 2A.
Fig. 4 illustrates a block diagram of a bandwidth adjustment apparatus for multicast traffic according to some embodiments of the present disclosure.
As shown in fig. 4, the bandwidth adjusting apparatus 4 includes a multicast packet monitoring module 41 and a bandwidth allocation adjusting module 42.
In the case that the low latency service data is multicast service data, the multicast packet monitoring module 41 is configured to monitor an add packet and a leave packet of the ONU for the low latency service channel, and notify the bandwidth allocation adjustment module 42 when a corresponding packet is monitored. For example, the multicast message monitoring module 41 is located on the ONU or the OLT.
The bandwidth allocation adjustment module 42 is configured to increase the number of burst timeslot allocations allocated for an ONU upon receiving an indication that the ONU joins a low-latency traffic channel. When an indication is received that an ONU is leaving a low-latency traffic channel, the number of burst slots allocated to the ONU is reduced. For example, the bandwidth allocation adjustment module 42 is located on the OLT.
For example, for VR services using a multicast mode, after an ONU joins (join), until leaving (leave) a multicast group for a corresponding low-latency service, the OLT increases the number of burst timeslot allocations for the ONU in the period. The number of burst slot assignments is restored after the ONU leaves the multicast group for the corresponding low-latency service.
In the first embodiment, there are 64 ONUs in the PON port of the OLT, where the ONU30 registers and uses the low-latency multicast service of the operator. Initially, each ONU is allocated 4 standard burst slots in each bandwidth cycle.
And a multicast message monitoring module of the OLT monitors multicast adding messages of the low-delay service and extracts multicast user information in the adding messages. When the multicast user information matches the ONU30, the bandwidth allocation adjustment module of the OLT is notified that the low-delay service of the ONU30 user is on-line and used.
The bandwidth allocation adjustment module of the OLT receives the information of "low-delay service of ONU30 user going online and using" sent by the multicast message monitoring module of the OLT, and adjusts the burst timeslot for ONU30 from 4 to 16 in the subsequent multiple bandwidth periods.
And a multicast message monitoring module of the OLT monitors a multicast leaving message of the low-delay service and extracts multicast user information added into the message. When the multicast user information matches the ONU30, the bandwidth allocation adjustment module of the OLT is notified "low-latency traffic drop-out for the ONU30 user".
The bandwidth allocation adjustment module of the OLT receives the information of "low-delay service offline leaving of the ONU30 user" sent by the multicast message monitoring module of the OLT. The burst slot for ONU30 is adjusted from 16 to 4 in the subsequent bandwidth period.
Fig. 5 shows a block diagram of a bandwidth adjustment apparatus for services other than multicast services according to some embodiments of the present disclosure.
As shown in fig. 5, the bandwidth adjusting apparatus 5 includes a low-latency service data monitoring module 51, a low-latency service data reporting module 52, and a bandwidth allocation adjusting module 53. For example, the low-latency service data monitoring module 51 and the low-latency service data reporting module 52 are located on the ONU. The bandwidth allocation adjustment module 53 is located on the OLT.
The low-latency service data monitoring module 51 is configured to continuously monitor the proportion of the number of ethernet packets, of which the average length of the data packet exceeds a specified byte, in the total number of the ethernet packets, with the duration T as a time period. When the ratio exceeds the threshold value N, the low-latency service data reporting module 52 is notified that the pending service data is low-latency service data, that is, the low-latency service data is to be uploaded. When the ratio is smaller than the threshold value N, the reporting module 52 is notified, and the low-latency service data is cancelled. In some embodiments, it may also be determined whether the service data to be transmitted is low-latency service data by using a size relationship between the number of ethernet packets whose average length of the data packet exceeds a specified byte in the duration T and a second threshold. The average length of the data messages of the Ethernet packet is the average value of the lengths of all the data messages in the Ethernet packet.
The low-latency service data reporting module 52 is configured to, when there is to-be-transmitted service data that is low-latency service data, carry a low-latency service identifier indicating that the low-latency service data is to be transmitted when the to-be-transmitted service data is reported in each bandwidth period. And under the condition that the service data to be transmitted is non-low-delay service data, when the service data to be transmitted is reported, the low-delay service identification indicating that the low-delay service data is to be transmitted is not carried.
The bandwidth allocation adjustment module 53 is configured to increase the number of burst timeslot allocations for the corresponding ONU, in case of receiving a low latency traffic identification indicating that low latency traffic data is to be transmitted. And under the condition that the low-delay service identification indicating that the low-delay service data is to be transmitted is not received, reducing the number of the burst time slots allocated to the ONU.
For example, the average length of the data packets of the ethernet packets of the low-latency service data based on the high-definition video and VR basically reaches the characteristic that the average length of the data packets of the ethernet packets is approximately equal to the upper limit, and the ONU side continuously monitors the proportion of the ethernet packets with the characteristic in a unit time, for example, within 10 us. And in the time period that the monitoring quantity exceeds the threshold value, the ONU carries a low delay identification indicating that the low delay service data is to be transmitted when the ONU reports the service data to be transmitted at the same time until the occupation ratio is lower than the threshold value, and the ONU does not carry the low delay identification. And when the OLT receives the low-delay identification, the quantity of the burst time slot allocation is increased.
For example, when receiving the indication information to be transmitted of the low-latency service data, the bandwidth allocation module in the OLT may determine whether to optimize the allocation number of the burst timeslots by combining with whether the low-latency service registration information of the corresponding ONU exists.
In the second embodiment, there are 64 ONUs in the PON port of the OLT, where the ONU30 registers and uses the low-latency traffic of the operator. Initially, each ONU is allocated 4 standard burst slots in each bandwidth cycle.
The low-delay service data monitoring module of the ONU30 counts that the proportion of the total uplink to-be-transmitted data in the uplink transmission data of the ONU30, in each bandwidth period, of the ethernet packet whose average length of the data message is greater than 2000 bytes is greater than 90%, and notifies the low-delay service data reporting module of the ONU that "the ONU has the low-delay service data to be transmitted".
After the low-delay service data reporting module of the ONU30 receives the information that the ONU has low-delay service to be transmitted, when reporting data to be transmitted in the next bandwidth period, the flag bit Type ID is set to 1, indicating that the low-delay data is to be transmitted.
The bandwidth allocation adjustment module of the OLT receives the information that the "low-latency data waits to be transmitted" reported by the ONU30, and adjusts the number of burst slots for the ONU30 from 4 to 16 in a subsequent bandwidth period X.
If the bandwidth allocation adjustment module of the OLT does not receive the information that the "low-latency data waits" reported by the ONU30 in the bandwidth period X +1, the number of burst slots for the ONU30 is adjusted from 16 to 4 in the bandwidth period X + 1.
The low-delay service data monitoring module of the ONU30 counts that the proportion of the total uplink pending transmission data of the ethernet packet with the average data message length larger than 2000 bytes in the uplink transmission data in each bandwidth period is 30% and 30% is smaller than 90%, and notifies the low-delay service data reporting module of the ONU that "the ONU30 has no low-delay service data pending transmission". The uplink transmission data is the service data to be transmitted.
After the low-delay service data reporting module of the ONU30 receives the information that "the ONU30 has no low-delay service data to be transmitted", when the data to be transmitted is reported in the next bandwidth period, the flag bit Type ID is set to 0, and it is indicated that "no low-delay data is to be transmitted". The Type ID is the 0 th bit or the 8 th bit in the Ind of the Header part of the ONU upstream frame in the present disclosure. The structure of the ONU upstream frame is the same as the existing structure.
The bandwidth allocation adjustment module of the OLT receives the information that the ONU30 reports that the low-delay-free data is ready to be transmitted, and adjusts the number of the burst time slots for the ONU30 to 4 in a subsequent bandwidth period X.
Fig. 6 is a block diagram of a bandwidth adjustment apparatus for services other than multicast services according to further embodiments of the present disclosure.
As shown in fig. 6, the bandwidth adjusting apparatus 6 includes a low-latency traffic data monitoring module 61 and a bandwidth allocation adjusting module 62.
The low-latency traffic data monitoring module 61 is configured to continuously monitor, for each ONU, the number of ethernet packets whose average length of data packets exceeds a specified number of bytes per bandwidth period. When the monitored number exceeds the threshold value N, the bandwidth allocation adjustment module 62 is informed that the low-delay service data is to be transmitted, and when the monitored number is smaller than the threshold value N, the bandwidth allocation adjustment module is informed that the low-delay service data is to be cancelled, namely the service data to be transmitted is the non-low-delay service data.
The bandwidth allocation adjustment module 62 is configured to increase the number of burst timeslot allocations for a corresponding ONU when an indication that low-latency service data is to be transmitted is received, and decrease the number of burst timeslot allocations for the ONU when the low-latency service data is to be transmitted is cancelled.
For example, when receiving the indication information to be transmitted of the low-latency service data, the bandwidth allocation module in the OLT may determine whether to optimize the allocation number of the burst timeslots by combining with whether the low-latency service registration information of the corresponding ONU exists.
In the third embodiment, there are 64 ONUs in the PON port of the OLT, where the ONU30 registers and uses the low-latency traffic of the operator. Initially, each ONU is allocated 4 standard burst slots in each bandwidth cycle.
When a low-delay service data monitoring module of the OLT monitors that the percentage of the total uplink to-be-transmitted data in the bandwidth period of the ethernet packet with the average data message length of more than 2000 bytes in the uplink to-be-transmitted data of the ONU30 in the bandwidth period X is more than 90%, the OLT querying module is notified that "the ONU30 has low-delay service data to be transmitted".
For example, the bandwidth allocation apparatus further includes an OLT querying module. And the OLT query module queries the service registration information of the ONU30 and confirms that the ONU30 registers the low-delay service, and then informs the bandwidth allocation adjustment module of the OLT of 'ONU 30 low-delay service optimization'.
The bandwidth allocation adjustment module of the OLT receives the "ONU 30 low-latency traffic optimization" information, and adjusts the number of burst slots for ONU30 to 16 in the subsequent bandwidth cycle.
When the low-delay service data monitoring module of the OLT monitors that the percentage of the total uplink to-be-transmitted data in the bandwidth period of the ethernet packet with the average data message length of more than 2000 bytes in the uplink to-be-transmitted data of the ONU30 in the bandwidth period X is less than 70%, the bandwidth allocation adjusting module of the OLT is notified that "the ONU30 has no low-delay service data to transmit".
The bandwidth allocation adjustment module of the OLT receives the information that "ONU 30 has no low-delay service data to transmit", and adjusts the number of burst slots for ONU30 to 4 in the subsequent bandwidth period.
Fig. 7 illustrates a block diagram of a bandwidth adjustment apparatus according to further embodiments of the present disclosure.
As shown in fig. 7, the bandwidth adjusting means 7 includes a memory 71; and a processor 72 coupled to the memory 71, wherein the memory 71 is used for storing instructions for executing the corresponding embodiment of the bandwidth adjusting method. The processor 72 is configured to perform the bandwidth adjustment method in any of the embodiments of the present disclosure based on instructions stored in the memory 71.
FIG. 8 illustrates a block diagram of a computer system for implementing some embodiments of the present disclosure.
As shown in FIG. 8, computer system 80 may take the form of a general purpose computing device. Computer system 80 includes a memory 810, a processor 820, and a bus 800 that connects the various system components.
The memory 810 may include, for example, system memory, non-volatile storage media, and the like. The system memory stores, for example, an operating system, an application program, a Boot Loader (Boot Loader), and other programs. The system memory may include volatile storage media such as Random Access Memory (RAM) and/or cache memory. The non-volatile storage medium stores, for instance, instructions to perform corresponding embodiments of at least one of the bandwidth adjustment methods. Non-volatile storage media include, but are not limited to, magnetic disk storage, optical storage, flash memory, and the like.
The processor 820 may be implemented as discrete hardware components, such as a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gates or transistors, or the like. Accordingly, each of the modules, such as the judging module and the determining module, may be implemented by a Central Processing Unit (CPU) executing instructions in a memory for performing the corresponding step, or may be implemented by a dedicated circuit for performing the corresponding step.
The bus 800 may use any of a variety of bus architectures. For example, bus structures include, but are not limited to, Industry Standard Architecture (ISA) bus, Micro Channel Architecture (MCA) bus, and Peripheral Component Interconnect (PCI) bus.
The computer system 80 may also include an input-output interface 830, a network interface 840, a storage interface 850, and the like. These interfaces 830, 840, 850 and the memory 810 and the processor 820 may be connected by a bus 800. The input/output interface 830 may provide a connection interface for input/output devices such as a display, a mouse, and a keyboard. The network interface 840 provides a connection interface for various networking devices. The storage interface 850 provides a connection interface for external storage devices such as a floppy disk, a usb disk, and an SD card.
Various aspects of the present disclosure are described herein with reference to flowchart illustrations and/or block diagrams of methods, apparatus and computer program products according to embodiments of the disclosure. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-readable program instructions.
These computer-readable program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable apparatus to produce a machine, such that the execution of the instructions by the processor results in an apparatus that implements the functions specified in the flowchart and/or block diagram block or blocks.
These computer-readable program instructions may also be stored in a computer-readable memory that can direct a computer to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instructions which implement the function specified in the flowchart and/or block diagram block or blocks.
The present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects.
By the bandwidth adjusting method and device and the computer storage medium in the embodiment, the service delay is reduced, and the user experience is improved.
Thus far, the bandwidth adjusting method and apparatus, and the computer-readable storage medium according to the present disclosure have been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.
Claims (16)
1. A bandwidth adjustment method, comprising:
under the condition that the service data to be transmitted of the optical network unit ONU is monitored to be low-delay service data, the number of the burst time slots distributed to the ONU is increased according to the delay requirement of the low-delay service.
2. The bandwidth adjustment method of claim 1, further comprising: and monitoring whether the service data to be transmitted of the ONU is low-delay service data or not.
3. The bandwidth adjusting method according to claim 2, wherein the service data to be transmitted is multicast service data, and monitoring whether the service data to be transmitted of the ONU is low-latency service data comprises:
monitoring whether the ONU joins a low-delay service channel or not;
and determining the service data to be transmitted as low-delay service data under the condition that the ONU is monitored to be added into a low-delay service channel.
4. The bandwidth adjustment method of claim 3, wherein monitoring whether the ONU joins a low-latency traffic channel comprises:
monitoring an adding message of the ONU which is added to the low-delay channel;
and the ONU joins the low-delay service channel under the condition that the joining message is monitored.
5. The bandwidth adjustment method of claim 3, further comprising:
monitoring whether the ONU leaves a low-delay service channel;
and under the condition that the ONU is monitored to leave the low-delay service channel, determining the service data to be transmitted as non-low-delay service data.
6. The bandwidth adjustment method of claim 5, wherein monitoring whether the ONU leaves a low latency traffic channel comprises:
monitoring a leaving message of the ONU leaving the low-delay service channel;
and under the condition that the leaving message is monitored, the ONU leaves the low-delay service.
7. The bandwidth adjusting method according to claim 2, wherein monitoring whether the service data to be transmitted of the ONU is low-latency service data comprises:
acquiring the average length of data messages of Ethernet packets in the service data to be transmitted of the ONU within a specified time period;
determining the number of Ethernet packets with the average length of the data messages larger than a first threshold value;
and determining the service data to be transmitted as low-delay service data under the condition that the number is greater than a second threshold value.
8. The bandwidth adjusting method according to claim 7, wherein monitoring whether the pending transmission service data of the ONU is low-latency service data further comprises:
and determining the service data to be transmitted as non-low-delay service data under the condition that the number is less than or equal to a second threshold value.
9. The bandwidth adjusting method according to claim 8, wherein in a case where monitoring whether the pending traffic data of the ONU is low-latency traffic data is performed by the ONU, the bandwidth adjusting method further comprises:
and receiving a low-delay service identifier carried when the ONU reports the service data to be transmitted under the condition that the service data to be transmitted is determined to be low-delay service data.
10. The bandwidth adjustment method of claim 9,
and receiving the service data to be transmitted reported by the ONU under the condition that the service data to be transmitted is determined to be non-low-delay service data, wherein the service data to be transmitted does not carry a low-delay service identifier.
11. The bandwidth adjusting method according to claim 2, wherein monitoring whether the service data to be transmitted of the ONU is low-latency service data comprises:
monitoring dynamic bandwidth allocation unit information reported by the ONU;
determining a transmission container corresponding to the dynamic bandwidth allocation unit message;
and determining the service data to be transmitted as the low-delay service data under the condition that the low-delay service parameter of the transmission container is a first value.
12. The bandwidth adjusting method according to claim 11, wherein monitoring whether the pending transmission service data of the ONU is low-latency service data further comprises:
and under the condition that the low-delay service parameter of the transmission container is a second value, determining the service data to be transmitted as non-low-delay service data.
13. The bandwidth adjustment method of claim 5, 8 or 12, further comprising: and under the condition that the service data to be transmitted is non-low-delay service data, reducing the number of burst time slots allocated to the ONU.
14. A bandwidth adjustment apparatus, comprising:
the device comprises an increasing module and a judging module, wherein the increasing module is configured to increase the number of the burst time slots allocated to the ONU according to the time delay requirement of the low-delay service under the condition that the service data to be transmitted of the ONU of the optical network unit is monitored to be the low-delay service data.
15. A bandwidth adjustment apparatus, comprising:
a memory; and
a processor coupled to the memory, the processor configured to perform the bandwidth adjustment method of any of claims 1-13 based on instructions stored in the memory.
16. A computer-storable medium having stored thereon computer program instructions which, when executed by a processor, implement the bandwidth adjustment method of any of claims 1 to 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911373848.8A CN113055205A (en) | 2019-12-27 | 2019-12-27 | Bandwidth adjusting method and device and computer storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911373848.8A CN113055205A (en) | 2019-12-27 | 2019-12-27 | Bandwidth adjusting method and device and computer storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113055205A true CN113055205A (en) | 2021-06-29 |
Family
ID=76506172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911373848.8A Pending CN113055205A (en) | 2019-12-27 | 2019-12-27 | Bandwidth adjusting method and device and computer storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113055205A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116132852A (en) * | 2021-11-15 | 2023-05-16 | 中兴通讯股份有限公司 | All-optical network bandwidth allocation method, optical gateway and computer readable storage medium |
| CN116634313A (en) * | 2023-06-27 | 2023-08-22 | 苏州大学 | Single-frame multi-burst allocation method and burst frame uplink method in optical forwarding network |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1610279A (en) * | 2003-10-21 | 2005-04-27 | 华为技术有限公司 | Passive optical network dynamic bandwide distributing apparatus and method |
| US20070133557A1 (en) * | 2005-12-05 | 2007-06-14 | Electronics & Telecommunications Research Institute | Bandwidth allocation device and method to guarantee QoS in Ethernet passive optical access network |
| CN101141410A (en) * | 2007-10-24 | 2008-03-12 | 中兴通讯股份有限公司 | Downlink flow control information transferring method in kilomega passive optical network system |
| CN101399758A (en) * | 2007-09-24 | 2009-04-01 | 中兴通讯股份有限公司 | Uplink bandwidth management method for Giga passive optical network |
| EP2111055A1 (en) * | 2008-04-17 | 2009-10-21 | Nokia Siemens Networks Oy | Extended queue polling mechanism for ITU G.984 GPON system |
| CN101662417A (en) * | 2008-08-26 | 2010-03-03 | 华为技术有限公司 | Method and equipment for multi-service adapting and multi-service loading |
| CN101668003A (en) * | 2008-09-05 | 2010-03-10 | 华为技术有限公司 | Method, device and system for transmitting data frames |
| CN102523539A (en) * | 2011-12-15 | 2012-06-27 | 北京讯风光通信技术开发有限责任公司 | Passive optical network system having dynamic bandwidth allocation function |
| CN104168100A (en) * | 2014-07-24 | 2014-11-26 | 重庆邮电大学 | Dynamic resource scheduling method for time-division wavelength-division mixing multiplexing passive optical network |
| CN105933064A (en) * | 2016-07-05 | 2016-09-07 | 北京邮电大学 | Dynamic bandwidth allocation method and apparatus |
| WO2017113336A1 (en) * | 2015-12-31 | 2017-07-06 | 华为技术有限公司 | Dynamic bandwidth assignment method and device, and passive optical network system |
| CN109428830A (en) * | 2017-08-31 | 2019-03-05 | 深圳市中兴微电子技术有限公司 | A kind of device and method of dynamic adjustment ONU equipment port speed constraint threshold values |
| CN109728927A (en) * | 2017-10-30 | 2019-05-07 | 中兴通讯股份有限公司 | Time delay optimization method, business scheduling method and storage medium |
-
2019
- 2019-12-27 CN CN201911373848.8A patent/CN113055205A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1610279A (en) * | 2003-10-21 | 2005-04-27 | 华为技术有限公司 | Passive optical network dynamic bandwide distributing apparatus and method |
| US20070133557A1 (en) * | 2005-12-05 | 2007-06-14 | Electronics & Telecommunications Research Institute | Bandwidth allocation device and method to guarantee QoS in Ethernet passive optical access network |
| CN101399758A (en) * | 2007-09-24 | 2009-04-01 | 中兴通讯股份有限公司 | Uplink bandwidth management method for Giga passive optical network |
| CN101141410A (en) * | 2007-10-24 | 2008-03-12 | 中兴通讯股份有限公司 | Downlink flow control information transferring method in kilomega passive optical network system |
| EP2111055A1 (en) * | 2008-04-17 | 2009-10-21 | Nokia Siemens Networks Oy | Extended queue polling mechanism for ITU G.984 GPON system |
| CN101662417A (en) * | 2008-08-26 | 2010-03-03 | 华为技术有限公司 | Method and equipment for multi-service adapting and multi-service loading |
| CN101668003A (en) * | 2008-09-05 | 2010-03-10 | 华为技术有限公司 | Method, device and system for transmitting data frames |
| CN102523539A (en) * | 2011-12-15 | 2012-06-27 | 北京讯风光通信技术开发有限责任公司 | Passive optical network system having dynamic bandwidth allocation function |
| CN104168100A (en) * | 2014-07-24 | 2014-11-26 | 重庆邮电大学 | Dynamic resource scheduling method for time-division wavelength-division mixing multiplexing passive optical network |
| WO2017113336A1 (en) * | 2015-12-31 | 2017-07-06 | 华为技术有限公司 | Dynamic bandwidth assignment method and device, and passive optical network system |
| CN105933064A (en) * | 2016-07-05 | 2016-09-07 | 北京邮电大学 | Dynamic bandwidth allocation method and apparatus |
| CN109428830A (en) * | 2017-08-31 | 2019-03-05 | 深圳市中兴微电子技术有限公司 | A kind of device and method of dynamic adjustment ONU equipment port speed constraint threshold values |
| CN109728927A (en) * | 2017-10-30 | 2019-05-07 | 中兴通讯股份有限公司 | Time delay optimization method, business scheduling method and storage medium |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116132852A (en) * | 2021-11-15 | 2023-05-16 | 中兴通讯股份有限公司 | All-optical network bandwidth allocation method, optical gateway and computer readable storage medium |
| CN116634313A (en) * | 2023-06-27 | 2023-08-22 | 苏州大学 | Single-frame multi-burst allocation method and burst frame uplink method in optical forwarding network |
| CN116634313B (en) * | 2023-06-27 | 2024-07-19 | 苏州大学 | Single-frame multi-burst distribution method, burst frame uplink method, distribution device and computer readable storage medium in optical forwarding network |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10516923B2 (en) | Dynamic bandwidth assignment method and apparatus, and passive optical network system | |
| US9331812B2 (en) | Round trip time aware dynamic bandwidth allocation for ethernet passive optical network over coaxial network | |
| CN100527708C (en) | Method for transmitting service frame in passive light network, optical network unit and optical line circuit | |
| US20140376916A1 (en) | Method and Apparatus of Delivering Upstream Data in Ethernet Passive Optical Network Over Coaxial Network | |
| JP2007097112A (en) | Bandwidth allocation device and method for guaranteeing qos in ethernet passive optical access network (epon) | |
| US20160028638A1 (en) | Method and system for improving bandwidth allocation efficiency | |
| WO2012009997A1 (en) | Bandwidth allocation method and apparatus | |
| CN104125518A (en) | Method for realizing data message transmission in transformer substation through passive optical network | |
| US11695478B2 (en) | Apparatuses, methods, and computer programs for a remote unit and a central unit of an optical line terminal | |
| CN113055205A (en) | Bandwidth adjusting method and device and computer storage medium | |
| CN110234041B (en) | Precise reporting mechanism for bandwidth requirements of optical network unit | |
| CN109245959A (en) | Statistics enlivens method, the network equipment and the system of flow amount | |
| CN103973597B (en) | The management method and system of resource in a kind of Opto-electronic system | |
| Han | Simple and feasible dynamic bandwidth and polling allocation for XGPON | |
| WO2024077988A1 (en) | Configuration information sending method and apparatus, and storage medium and electronic apparatus | |
| CN101753431B (en) | Uplink bandwidth estimation method and device | |
| EP3985991A1 (en) | Bandwidth assignment method and apparatus, and bandwidth check method and apparatus | |
| US20230336486A1 (en) | Service flow scheduling method and apparatus, and system | |
| WO2020238247A1 (en) | Bandwidth allocation method and related device | |
| CN109348315B (en) | Dynamic bandwidth allocation method for adjusting bandwidth allocation parameters based on time division multiplexing | |
| CN104488236A (en) | Bandwidth allocation method, device, local side, terminal and system | |
| CN115643501A (en) | Bandwidth allocation method, OLT, ONU, terminal and storage medium | |
| CN113873361A (en) | Configuration method for uplink service transmission capability of ONU (optical network Unit) and optical line terminal | |
| CN112911421A (en) | Dynamic bandwidth allocation method and device, passive optical fiber network and storage medium | |
| CN104954285A (en) | Dynamic power control method and device for OTN (optical transport network) system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210629 |